We can hardly believe what she says because she is ___changing her mind

As far as I am concerned, education is about learning and the more you learn, ______.

It’s really cold here. I have never experienced such terrible weather in my life. [ ]

Have you found the mobile phone _____ you lost last week?—-No, but I’ve just bought a new one.

It is strongly suggested that measures ________students to cheat in the exams.